Sponsor:
Masimo Corporation

Eligibility requirements:
Patients who are at least 18 years old and are scheduled for a surgery under general anesthesia.

Study objectives:
The purpose of the study is to collect data to characterize Masimo's non-invasive Rainbow technology during surgeries on patients. The results of the non-invasive measurement will be compared to that obtained from the standard analysis of blood samples routinely collected during surgery to monitor hemoglobin levels.

Procedures:
Subjects who consent to participate will have up to 6 external monitors placed on their fingers, forehead, neck, chest, or ears. In addition to the standard blood drawn during surgery for monitoring of hemoglobin, a maximum of five additional blood draws may be performed for study purposes.

###

*Each listing only contains a summary of the study information. Please contact the Principal Investigator or Study Coordinator for the full details on a particular study.